general specification for plumbing installation in ...page 1 of 23 pi_gs 2017 edition major changes...

General Specification for Plumbing Installation in Government Buildings of the Hong Kong Special Administrative Region

(2017 Edition)

The General Specification for Plumbing Installation in Government Buildings of the HKSAR (2017 edition) is newly compiled with reference to the relevant parts of the 2012 edition (incorporating Corrigendum No. GSPD02-2012) of the General Specification for Plumbing and Drainage Installation in Government Buildings of the HKSAR. Please refer to the summary of major changes for updates and revisions in comparison with the relevant parts of the latter document.

Electronic version of this 2017 edition can be viewed on the ArchSD Internet

website.

In view of the updates and revisions, there will be an introductory period of 6 months in preparation for full implementation of this 2017 edition as contract document by 1 October 2017. In summary, For tenders to be invited on or after 1 October 2017, this 2017 edition shall be

used.

Existing contracts (including contracts using previous editions tendered before 1 October 2017) will not be affected.

of 23 PI_GS 2017 Edition Major Changes GSPI-2017

MAJOR CHANGES IN THE GENERAL SPECIFICATION FOR PLUMBING INSTALLATION IN GOVERNMENT BUILDINGS OF THE HONG KONG SPECIAL ADMINISTRATIVE REGION

2017 EDITION

Note: "Old Ref. No. (2012)" refers to the clause reference no. in the 2012 edition (incorporating Corrigendum No. GSPD02-2012) of the General Specification for Plumbing and Drainage Installation in Government Buildings, and "New Ref. No. (2017)" refers to the clause reference no. in this General Specification for Plumbing Installation in Government Buildings.

Old Ref. No. (2012) New Ref. No. (2017) Major Changes

COVER PAGE

Delete “and Drainage”

Replace “2012 EDITION (INCORPORATING CORRIGENDUM NO. GSPD02-2012)” by “2017 EDITION”

PREFACE

General revision

DISCLAIMER

Delete “and Drainage”

TABLE OF CONTENTS

SECTION A2 SECTION A2 Delete A2.1.1 to A2.1.4

SECTION A3 SECTION A3 - Renumber A3.11 Equipment Deviations to A3.16



- Add A3.11, A3.12, A3.13, A3.14, A3.15, A3.17, A3.18

SECTION A4 SECTION A4 - Delete A4.2.1 to A4.2.7

- Delete A4.3.1 to A4.3.4

- Replace title of A4.4 “Operation and Maintenance (O&M) Manual” by “Operation and Maintenance (O&M) Manual and User Manual”

- Delete A4.4.1 to A4.4.5

SECTION B1 SECTION B1 - Replace title of B1 “INSTALLATION OF PLUMBING SYSTEMS” by “PLUMBING SYSTEMS”

- Add a new Section B1.6 – Pipework Penetrating Building Structure

- Renumber B1.6 to B1.11

- Add B1.12.3 – Water Quality Test

- Add a new Section B1.13 – Quality Control of Soldering/Brazing Joints for Copper Pipes

SECTION B2 - Delete whole Section B2 – INSTALLATION OF ABOVE GROUND DRAINAGE SYSTEMS

- SECTION B2 - Add a new Section B2 - WATER HANDLING EQUIPMENT

- Add new clauses B2.1 to B2.16

SECTION B3 - Delete whole Section B3 – INSTALLATION OF UNDERGROUND DRAINAGE SYSTEMS



SECTION B4 SECTION B3 Renumber whole Section B4 to Section B3

SECTION C2 - Delete whole Section C2 – ABOVE GROUND DRAINAGE SYSTEMS

- SECTION C2 - Add a new Section C2 - WATER HANDLING EQUIPMENT and C2.1 to C2.11

- Add new clauses C2.1 to C2.11

SECTION C3 - Delete whole Section C3 – UNDERGROUND DRAINAGE SYSTEMS

PART D PART D General revision

PART E PART E General revision

GENERAL

- - - Replace “PD” by “Plumbing” for the whole document.

- Replace “Architect” by “Supervising Officer” for the whole document.

PART A

SECTION A1

A1.1 A1.1 Delete “and Drainage”

A1.2 A1.2 Delete “design where specified,”



A1.3 A1.3 - Delete the Section title of “A1.3.1 Terms and Definitions”

- Add “A/C General Specification”

- Revise “AISI” to stand for “American Iron and Steel Institute”

Delete “Architect”, “ASHRAE”, “ASME”, “CFC”, “DDC”, “DIN”, “E&M”, “EMC”, “FRC”, “HCFC”, “HFC”, “LCD”, “LED”, “LSOH”, “MCC”, “RH”, “SAE”

- Revise the definition of “Conditions” as “The “Conditions of Contract” as defined in the Contract. For Nominated Sub-contract works, the “Main Contract Conditions” and the “Sub-contract Conditions” as defined in the Nominated Sub-contract as appropriate”

- Add “DI General Specification”

- Add “FRP”

- Add “HOKLAS”

- Revise “Installations” by replacing “works” with “work” and deleting “and Drainage”

- Revise “ISO” by deleting “Publication”

- Add “or equivalent standards”

- Revise “PD Contractor” by “Plumbing Contractor” and add “Plumbing” before Installation.

- Revise title of “Proprietary brand name materials or products” by “Proprietary brand name products or materials” and replace the definition as “The phrase “or alternative products or materials having equivalent functions or performance” is deemed to be included wherever



products or materials are specified by proprietary brand names in the Contract. Alternative products or materials of different brands or manufacture having equivalent functions or performance maybe submitted for the consideration of the Supervising Officer”

- Add “Supervising Officer”

- Add “SCCU”

- Add “WA”

- Revise WRAS by deleting “(WRAS)”

SECTION A2

A2.1.1 (a) A2.1.1 (a) Replace “Building” by “Buildings”

A2.1.1 (h) A2.1.1 (h) Delete “Fire Service (Installations and Equipment) Regulations”

- A2.1.1 (i) Add a new requirement “Electricity Ordinance (Cap. 406), and other subsidiary legislation made under the Ordinance”

- A2.1.1 (q) Add a new requirement “Buildings Energy Efficiency Ordinance (Cap. 610), and other subsidiary legislation made under the Ordinance”

- A2.1.1 (r) Add a new requirement “Energy Efficiency (Labelling of Products) Ordinance (Cap. 598)”

A2.1.1 A2.1.1 Renumber the whole section.



A2.1.2 (b) A2.1.2 (b) Replace “ProPECC” by “Practice Notes of Professional Persons Environmental Consultative Committee”

A2.1.2 (c) A2.1.2 (c) Delete “and Circular Letters”

- A2.1.2 (d) Add a new requirement “Water Supplies Department Circular Letters issued to Licensed Plumbers and Authorised Persons;”

A2.1.2 (i) A2.1.2 (j) Add “hereinafter referred as the “Building Energy Code” or “BEC”;”

- A2.1.2 (l) Add “General Specification for Air-conditioning, Refrigeration, Ventilation and Central Monitoring & Control System Installation in Government Buildings of the HKSAR, issued by ArchSD;”

- A2.1.2(m) Add “General Specification for Drainage Installation in Government Buildings of the HKSAR, issued by ArchSD;”

A2.1.2 (k) A2.1.2 (n) Replace “Hong Kong Special Administration Region” by “HKSAR”

A2.1.2 (l) A2.1.2 (o) Replace “Hong Kong Special Administration Region” by “HKSAR”

A2.1.2 (n) A2.1.2 (q) Add “issued by EPD”

A2.1.2 (o) A2.1.2 (r) Add “issued by EPD”

- A2.1.2 (u) Add “The Supply Rules and other requirements issued by the relevant local electricity suppliers and Water Authority;”

A2.1.2 A2.1.2 Renumber the whole section.



A2.1.3 (e) A2.1.3 (e) Delete “the Works Branch of”

- A2.1.3 (f) Add “Code of Practice on Working near Electricity Supply Lines published by the EMSD; and”

- A2.1.3 (g) Add “Code of Practice on Avoiding Danger from Gas Pipes published by the EMSD.”

SECTION A3

A3.1 A3.1 Delete “(Système International D'Unités)”.

A3.2 (f) A3.2 (f) Add “e.g. electricity supply, water and town gas”.

A3.4 A3.4 - Move the first sentence to become a new paragraph.

- 2nd paragraph :– replace “drawings” by “Drawings”.

A3.5 A3.5 1st paragraph :– add to the last sentence “and keep the Site in a clean and tidy condition”.

A3.6 A3.6 - 1st paragraph :– replace “works” by “Installations” and replace “Architect” by “Supervising Officer and his Representative”.

- 4th paragraph :– add “/Qualified Skilled Workers” after Qualified Tradesmen and “/Qualified Semi-skilled Workers” after Intermediate Tradesmen.

- 5th paragraph :– add “/skilled workers” after registered tradesmen.

A3.7 A3.7 - 2nd paragraph :– add at the beginning “The sample board shall comply with the requirements of the Water Authority.” and add to the last sentence “of the Supervising Officer’s



Representative”.

- 5th paragraph :– add a new item (c) “Taps, shower mixers and solder materials if used.”.

- Add a new 6th paragraph.

- 7th paragraph :– add to the last sentence “in the Particular Specification”.

A3.9 A3.9 2nd paragraph :– delete the first sentence.

A3.9 A3.9 3rd paragraph :– add “and equipment” after materials.

A3.9 A3.9 Add a new 4th paragraph.

A3.10 A3.10 2nd paragraph :– replace “the Architect and the Architect’s Representatives” by “the Supervising Officer and his Representative”.

- A3.11 Add a new clause “SERVICE CONDITION”.

- A3.12 Add a new clause “VOLTAGE COVERED BY THIS GENERAL SPECIFICATION”.

- A3.13 Add a new clause “LABEL”.

- A3.14 Add a new clause “WARNING NOTICE”.

- A3.15 Add a new clause “GUARD AND RAILING FOR MOVING OR ROTATING PARTS OF EQUIPMENT”.



A3.11 A3.16 Renumber A3.11 to A3.16 EQUIPMENT DEVIATIONS.

- 1st paragraph :– replace “award of the Contract” by “acceptance of the his Tender”, replace “consider and accept” by “, subject to the Conditions, consider and approve”, replace “Specifications” by “Specification”.

- Delete 2nd paragraph.

- A3.17 Add a new clause “WATERPROOFING”.

- A3.18 Add a new clause “SURVEYS AND MEASUREMENTS”.

SECTION A4

A4.1 A4.1 Delete “Works Branch” and replace “Architectural Services Department” by “ArchSD”.

A4.2.2 A4.2.2 - 1st paragraph :– replace “ISO 5457:1999” by “ISO 5457:1999 +A1:2010”.

- 2nd paragraph :– replace “‘Installation Drawings’ and /or ‘Shop Drawings’” by “installation drawings and/or shop drawings”.

- Delete 3rd paragraph.

A4.2.3(a) A4.2.3(a) - 2nd paragraph item (a) 1st bullet :– add “Employer’s own Contract” before Drawings.

- 2nd paragraph item (a) 4th bullet :– revise as “Maintenance spaces for all withdrawable items, such as gratings, cleaning eyes, access points, manholes, etc.;”

- Delete 5th, 6th, and 7th bullets.



A4.2.3(b) A4.2.3(b) 2nd paragraph item (b) :– delete 4th and 5th paragraphs.

A4.2.6 A4.2.6 - Revise 1st paragraph as “The Plumbing Contractor shall submit plumbing proposals prior to the installation work, with all necessary drawings and information approved by the Supervising Officer, to the SCCU established under ArchSD, Building Authority, WSD or DSD where appropriate for approval/inspection.”.

- Delete 2nd paragraph.

- Add a new paragraph.

A4.2.7 A4.2.7 - 1st paragraph :– replace “is” by “are”.

- 2nd paragraph :– replace “execution of Works” by “execution of Installations”.

A4.3.1 A4.3.1 - Revise as “The Plumbing Contractor shall submit to the Supervising Officer as-built drawings, including the draft prints and revised draft prints for checking and the final approved drawings for record in accordance with the requirements set out in the contract documents.”.

- Delete 2nd and 3rd paragraphs.

A4.3.2 A4.3.2 Replace “ISO 5457:1999” by “ISO 5457:1999 +A1:2010”.

A4.3.3 A4.3.3 - 1st paragraph - delete the last sentence and item (a), (b) & (c).

- 2nd paragraph :– add “such as design water flow rates” after details.

A4.3.4 (b) A4.3.4 (b) Add “, etc. including all electrical and control schematics and diagrams; and”.



- A4.3.4 (c) Add a new item (c) “Vertical plumbing line diagrams and water pipe alignment plans.”

A4.4 A4.4 General revision

PART B

SECTION B1

Section B1 Section B1 Revise title as “PLUMBING SYSTEMS”

B1.1.1 (a) Revise “B1.1.1” to “(a)”. Add “supply systems” and replace “Site” by “site”.

B1.1.2 (b) Revise “B1.1.2” to “(b)” and replace “Site” by “site”.

- (c) Add a new clause (c).

- (d) Add a new clause (d).

- (e) Add a new clause (e).

B1.1.3 (f) Revise “B1.1.3” to “(f)” and replace “Site” by “site”.

B1.1 B1.1 2nd paragraph :– replace “installation” by “plumbing installation”, replace “this Specification” by “the Specification and Drawings” and delete “supply” in the last sentence.

B1.3.3 B1.3.3 - 1st paragraph :– Add “server room” and add to the end “or susceptible to water damage hazard”.

- Add a new 2nd paragraph “Dead legs and stagnant corners in the pipework shall be avoided.



The number and length of spurs shall be minimized.”.

B1.4.1 B1.4.1 3rd paragraph :– Add to the end “and where necessary to absorb the effect of expansion on pipes”.

B1.4.3

B1.4.3

- 1st paragraph :– Add “or brazed capillary fittings” to the second last sentence after capillary fittings.

- Replace 3rd paragraph by “Soldering alloys for copper and copper alloy capillary fittings shall comply with Table 6 Section II and III of BS EN 1254-1: 1998. Chemical compositions of soldering alloy shall comply with Table 3 of BS EN ISO 9453:2014 and shall be of lead-free. Non-corrosive type of flux recommended by the solder alloy manufacturer shall be used.”

- Add a new paragraph :– “Lead-free soldering alloys and cadmium-free brazing alloy shall be used in installations for water for human consumption and shall fully comply with the requirements of WSD and this section. Supporting document of lead-free grade and /or cadmium-free grade soldering materials and filler metal used in soldering/brazing shall be provided.”.

- Add another new paragraph :– “All plumbing works using soldering for connecting copper pipes shall have the permission of the Water Authority.”.

- Replace the 6th paragraph by “Brazing alloys for copper and copper alloy capillary fittings shall comply with Table 6 in Section VI of BS EN 1254-1: 1998. Chemical compositions of brazing alloy shall comply with Table 7 of BS EN ISO 17672:2010 with 2% nominal silver content and shall be of cadmium-free. These brazing alloys should never be used on copper alloys containing nickel. Flux shall not be used for brazing copper-to-copper joints. For joints other



B1.4.3 (Cont’d)

B1.4.3 (Cont’d)

than copper-to-copper, type of flux recommended by the brazing alloy manufacturer shall be used.”

- 9th paragraph item (b) :– add “, insert the pipe end into fitting cup”.

- 9th paragraph :– add a new item (c) “Apply heat to the body of the fitting and pipe.”.

- 9th paragraph :– add a new item (d) “Apply a small amount of lead-free solder wire to the pipe where it enters the fitting. The solder will be drawn inside the joint by capillary action.”.

- 9th paragraph :– renumber item (c) to item (e).

- 9th paragraph :– item (e) add to the end “and excess solder”.

- 10th paragraph item (a) :– replace “when brazing” by “and assemble the joint”.

- 10th paragraph :– add a new item (b) “Apply heat to the body of the fitting and pipe.”.

- 10th paragraph :– add a new item (c) “Apply the brazing filler metal to the pipe where it enters the fitting. The filler metal will be drawn inside the joint by capillary action.”.

- 10h paragraph :– renumber item (b) to (d).

B1.5.1 B1.5.1 - 3rd paragraph :– replace “BS EN 10088-3: 2005” by “BS EN 10088-3: 2014”

- 4th paragraph :– replace “BS EN 10088-3: 2005” by “BS EN 10088-3: 2014”

- 5th paragraph :– replace “Pipework” by “Pipe”



B1.5.2 B1.5.2 Replace Table B1.5.2 Spacing of Pipe Fixing as follow: Pipes Nominal Size (mm)

Maximum Spacing (mm)

Vertical pipes Horizontal pipes Cast iron and ductile iron

All 3000 1750

Steel Up to 15 20 and 25

32 40 and 50 65 to 80

100 to 125 150

2400 3000 3000 3600 4500 4500 5400

1800 2400 2700 3000 3600 4000 4500

Copper 15 22 and 28 35 and 42

54 76 and 108

1800 2400 3000 3000 3600

1200 1800 2400 2700 3000

UPVC Up to 25 32

40 and 50 65 to 150

1500 1800 2000 2500

750 900 1000 1200



- B1.6 Add a new Section B1.6 PIPEWORK PENETRATING BUILDING STRUCTURE and B1.6.1 to B1.6.5.

B1.6 B1.7 Renumber the whole section.


- B1.8.3 Add a new section B1.8.3 :– “Non-return valve shall be installed at relevant upstream tee-off branches to non-drinking water points to avoid cross contamination between drinking and non-drinking water points.”.

- B1.8.4 Add a new section B1.8.4 :– “Non-return valve shall be installed immediately before water filters to avoid contamination of upstream pipework.”.


- B1.9.2 Add to the end “which are not susceptible to water damage”.

- B1.9.3 Delete the 1st paragraph


- B1.10 1st paragraph :– replace “this Installation” by “the Installations”.


- B1.11.4 1st paragraph :– replace “24.30” by “24.31”.




- B1.12.1 Replace “Potable” by “Fresh”, add “and flushed thoroughly with potable water” after further disinfected and “and before water supply is resumed. The Plumbing Contractor shall arrange with the Water Authority to collect water samples for testing.” after cleaning.

- B1.12.2 Add “required by WSD and as” and delete “and Drainage”

- B1.12.3 Add a new clause :– Water Quality Test

- B1.13 Add a new clause :– QUALITY CONTROL OF SOLDERING/BRAZING JOINTS FOR COPPER PIPES and B1.13.1 to B1.13.3.

SECTION B2

SECTION B2 - Delete the whole Section B2 :– Installation of Above Ground Drainage Systems

- SECTION B2 Add a new Section B2 :– Water Handling Equipment and B2.1 to B2.13.

SECTION B3

SECTION B3 - Delete the whole Section B3 :– Installation of Underground Drainage Systems

SECTION B4 SECTION B3 Renumber whole Section B4 to Section B3 :– Painting, Finishings and Identification

- B3.1 - 1st paragraph :– replace “clean” by “cleaned”, replace “work” by “works” and add to the end “/qualified skilled workers”.

- 3rd paragraph :– replace “approved by the Architect” by “submitted for the approval of the



Supervising Officer”.

- Add a new 4th paragraph :– “The volatile organic compound (VOC) content, in grams per litre, of all paint and primer shall not exceed the prescribed limit under the Air Pollution Control (Volatile Organic Compounds) Regulation or the limit set by EPD, whichever is more stringent.”.

- Add a new 5th paragraph :– “VOC content of paint shall be determined by methods stipulated in Air Pollution Control (Volatile Organic Compounds) Regulation or other methods acceptable to EPD.”.

PART C

SECTION C1

C1.1.1 C1.1.1 Replace “material” by “materials”

C1.1.2 C1.1.2 Replace “material” by “materials”

C1.1.3 C1.1.3 Replace “material” by “materials” and “Specification” by “General Specification”.

C1.1.4 C1.1.4 Replace “BS 6920-1: 2000” by “BS 6920-1: 2014”

C1.2.1 C1.2.1 Replace “Standards” by “standards”



C1.2.1 Table C1.2.1 Replace Table C1.2.1 as follow:

Application Type Cold water potable and non-potable water supply systems

For mains supply and up feed riser: Ductile iron to BS EN 545: 2010, Class 100 with minimum thickness in full compliance with the following Table C1.2.4 with internal cement lining For down feed pipes: Copper to BS EN 1057: 2006 +A1: 2010 or Stainless Steel to BS EN 10312: 2002 +A1: 2005 (<50 mm dia.) and BS EN 10217-7: 2014 (>50 mm dia.)

Fire service mains supply To the requirements of General Specification for Fire Service Installation in Government Buildings of the HKSAR

Hot water potable and non-potable water supply systems

Copper pipe to BS EN 1057: 2006 +A1: 2010 or Stainless Steel pipe to BS EN 10312: 2002 +A1: 2005 (<50 mm dia.) and BS EN 10217-7: 2014 (>50 mm dia.)

Flushing water supply system

For mains supply and up feed riser: Ductile iron to BS EN 545: 2010, Class 100 with minimum thickness in full compliance with the following Table C1.2.4 with internal cement lining



For down feed pipes: Ductile iron to BS EN 545: 2010, Class 100 with minimum thickness in full compliance with the following Table C1.2.4 with internal cement lining or UPVC to BS EN ISO 1452-2: 2009 series S8 or above, or UPVC to BS 3505: 1986 Class E.

C1.2.2 C1.2.2 - Replace “tamper” by “temper”, replace “BS EN 1057: 2006 with amendment A1: 2010” by “BS EN 1057: 2006 +A1: 2010”.

- Add a new 6th paragraph :– “Lead-free soldering alloys and cadmium-free brazing alloy shall be used in installations for water for human consumption and shall fully comply with the requirements of WSD and Section B1.4.3.”.

C1.2.3 C1.2.3 Replace “BS EN 10312: 2002 with amendment A1: 2005” by “BS EN 10312: 2002 +A1: 2005” and replace “BS EN 10217-7: 2005” by “BS EN 10217-7: 2014”

C1.2.4 C1.2.4 Replace the 1st paragraph by “Ductile iron pipe shall be to BS EN 545: 2010, Class 100 with minimum thickness in full compliance with the following Table C1.2.4 with internal cement lining and external bitumen coating.”.



- Table C1.2.4 Add a new table C1.2.4 as follow:

Nominal Size DN (mm)

Class Minimum Pipe & Fitting Thickness (mm)

80 100 5.62 100 100 5.8 150 100 6.35 200 64 6.9 250 64 7.45 300 64 8 350 64 8.55 400 50 9.1 450 50 9.65 500 50 10.2 600 50 11.3

C1.2.5 C1.2.5 - 1st paragraph :– add after series S8 “(SDR) PN12.5” Replace “BS EN ISO 1452-3: 2009” by “BS EN ISO 1452-3: 2010”.

- 2nd paragraph :– replace “BS EN ISO 1452-3: 2009” by “BS EN ISO 1452-3: 2010”.

- Add a new 4th paragraph :– “All UPVC pipes must be properly supported and shielded from direct sunrays and must be painted with white acrylic paint when exposed.”.

C1.3.1 C1.3.1 3rd paragraph :– replace “BS EN 10088” by “BS EN 10088: 2014”



C1.3.2 C1.3.2 2nd paragraph :– replace “BS EN 1092-1: 2007” by “BS EN 1092-1: 2007 +A1:2013”

C1.4.3 C1.4.3 Replace “BS EN ISO 1452-1:2009” by “BS EN ISO 1452-2:2009”.

C1.4.4 C1.4.4 Add “fire barriers such as” before fire rated walls

C1.4.6 C1.4.6 Add “stainless steel to BS EN 10088-1: 2014 Grade 1.4301 with flange end connection to BS EN 1092-1 or” before gunmetal.

C1.5.3 (b) C1.5.3 (b) Replace “BS EN 10088-1: 2005” by “BS EN 10088-1: 2014”

C1.5.5 (b) C1.5.5 (b) Replace “BS EN 10088-1: 2005” by “BS EN 10088-1: 2014”

C1.5.6 C1.5.6 Add “in conjunction with BS EN 10226-1:2004”.

C1.6.1 C1.6.1 - 7th paragraph item (b) add “as appropriate”

- 8th paragraph item (d) - replace “BS 6920-1: 2000” by “BS 6920-1: 2014”

- 11th paragraph :– replace “BS 6920-1: 2000” by “BS 6920-1: 2014”

C1.6.2 C1.6.2 - 1st paragraph item (b) :– delete “or leaded brass” and replace “BS EN 12163:2011” by “BS EN 12163:2016”.

- 2nd paragraph item (a) :– replace “BS EN 12163:2011” by “BS EN 12163:2016”.

- 2nd paragraph item (b) 1st bullet :– add to the end “or trimmed with austenitic chromium nickel stainless steel to Bs EN 10088-3:2014 number 1.4301 or 1.4401”.

- 2nd paragraph item (b) 2nd bullet :– replace “BS 6920-1:2000” by “BS 6920-1:2014”.



- 2nd paragraph item (c) 1st bullet :– replace “BS EN 10088-3: 2005” by “BS EN 10088-3: 2014”.

- 2nd paragraph item (c) 2nd bullet :– delete “leaded brass” , replace “BS EN 10088-3: 2005” by “BS EN 10088-3: 2014” and replace “BS EN 12163:2011” by “BS EN 12163:2016”.

C1.6.3 C1.6.3 - 1st paragraph item (b) 2nd bullet :– replace “BS EN 12163:2011” by “BS EN 12163:2016” and delete “or leaded brass”.

- 2nd paragraph item (b) 1st bullet :– replace “BS EN 1982” by “BS EN 1982:2008” and replace “BS EN 10293:2005” by “BS EN 10283:2010”.

- 2nd paragraph item (c) :– replace “BS EN 10088-3: 2005” by “BS EN 10088-3: 2014” and replace “1.4301” by “1.4401”.

C1.6.4 C1.6.4 6th paragraph :– replace “BS EN 1092-1: 2007” by “BS EN 1092-1: 2007 +A1:2013”

C1.6.7 C1.6.7 4th paragraph :– replace “BS EN 10088: 2005” by “BS EN 10088: 2014”

C1.6.8 C1.6.8 Replace “BS 1212-2:1990” by “BS 1212-3:1990”.

C1.7.1 C1.7.1 - 6th paragraph :– replace “BS EN 10088-1: 2005” by “BS EN 10088-1: 2014”,

- 7th paragraph :– replace “BS EN 10088-3: 2005” by “BS EN 10088-3: 2014”.

- 10th paragraph :– replace “BS EN 1092-1: 2007” by “BS EN 1092-1: 2007 +A1:2013 and BS EN 1092-3 whenever applicable.”

C1.7.2 C1.7.2 - 9th paragraph item (b) 1st bullet :– replace “BS EN 10088-2: 2005” by “BS EN 10088-2: 2014”.

- 9th paragraph item (b) 2nd bullet :– replace “BS EN 10088-2: 2005” by “BS EN 10088-2:



2014”.

- 9th paragraph item (d) 1st bullet :– delete “or leaded brass”, replace “BS EN 12163:2011” by “BS EN 12163:2016” and replace “BS EN 10088-3: 2005” by “BS EN 10088-3: 2014”.

- 9th paragraph item (d) 2nd bullet :– replace “BS EN 10088-3: 2005” by “BS EN 10088-3: 2014”.

SECTION C2

SECTION C2 - Delete the whole Section C2 :– Above Ground Drainage Systems

- SECTION C2 Add a new Section C2 :– Water Handling Equipment

SECTION C3

SECTION C3 - Delete the whole Section C3 :– Underground Drainage Systems

PART D

PART D PART D General revision

PART E

PART E PART E General revision

ANNEX 1

Annex 1 Annex 1 General revision

general specification for plumbing installation in ...page 1 of 23 pi_gs 2017 edition major changes...

Documents